Merci pour le chocolat / Nightcap (2000) Blu-Ray

Acclaimed pianist Andre Polonski (Jacques Dutronic) remarries his first wife Marie-Claire Muller, or Miki (Isabelle Huppert). She's the owner of a prosperous and established chocolate company. Andres second wife Lisbeth died in a car crash; he has a grown son by her, Guillaume (Rodolphe Pauly). Immediately after the remarriage the family home is visited by young Jeanne Pollet (Anna Mougalis), a student pianist. But she's also come to see Andre because a maternity ward mix-up when she was born places some doubt about who is Andre's real child, Guillaume or Jeanne. Mika pays a call on Jeanne's mother Louise (Brigitte Catillon), the director of a lab that does crime work. Apparently no mix-up occurred yet Mika seems bothered just the same. She suggests that Jeanne stay over to study with her husband, and treats her with such measured courtesy that the younger woman becomes suspicious. Sure enough, Jeanne spots Mika purposely spilling a thermos of chocolate, so they can clean it up together...